scholarly journals Proprioceptive afferents differentially contribute to effortful perception of object heaviness and mass distribution

2020 ◽  
Author(s):  
Madhur Mangalam ◽  
Nisarg Desai ◽  
Tarkeshwar Singh
Keyword(s):  
Mass Distribution ◽  
Rhythmic Activity ◽  
Muscle Spindles ◽  
Ulnar Deviation ◽  
Perceptual Judgments ◽  
Proprioceptive Afferents ◽  
The Moment ◽  
First Time ◽  
Different Levels ◽  
Wrist Flexors

AbstractWhen humans handle a tool, such as a tennis racket or hammer, for the first time, they often wield it to determine its inertial properties, however, the mechanisms that contribute to perception of inertial properties are not fully understood. The goal of the present study was to investigate how proprioceptive afferents contribute to effortful perception of heaviness and mass distribution of a manually wielded object in the absence of vision. Blindfolded participants manually wielded a set of specially-designed experimental objects of different mass and mass distribution about the wrist at different wrist angles and wrist angular kinematics. By independently manipulating these variables, we aimed to elicit different levels of tonic and rhythmic activity in the muscle spindles of the wrist flexors and extensors and relate them to reported perceptual judgments of heaviness and length. Perception of heaviness and length were predominantly dependent on an object’s static moment and the moment of inertia, respectively. Manipulations of wrist angle and wrist angular kinematics affected perceptual judgments of heaviness and length in relatively opposite ways. As for wrist angle, ulnar deviation consistently resulted in an object being perceived heavier but shorter. Compared to static holding, wielding the object resulted in it being perceived heavier but wielding did not affect perceived length. These results suggest that proprioceptive afferents differentially contribute to effortful perception of object heaviness and mass distribution.

TOWARDS THE QUESTION OF SPECIALIZED FEEDS FOR TENCHES (TINCA TINCA)

2017 ◽  
pp. 89-97
Author(s):  
Elena Mikhaylovna Chervonenko ◽  
Lina Yurievna Lagutkina
Keyword(s):  
Growth Rate ◽  
Fish Growth ◽  
Animal Origin ◽  
State Technical ◽  
Tinca Tinca ◽  
Daily Growth ◽  
Volga River ◽  
The Moment ◽  
First Time ◽  
Technical Centre

The article describes the process of tench growing (male and female species removed from set gear in the Volga river in the Astrakhan region) using experimental feedstuff "T", taking into account the fact that problems with artificial growing tench ( Тinca tinca ) appear first in the process of feeding when wild sires change to artificial food. The research took place on the base of the department of aquaculture and water bioresources of Astrakhan State Technical University in innovation centre "Bioaquapark - scientific and technical centre of aquaculture" in 2015. Special feed including components of animal origin - mosquito grab and sludge worm as an effective substitute to fish flour, as well as components of vegetable origin (carrot, parsley, pumpkin, wheatgrass) for domestication of tenches are offered for the first time. Food technology has been described. The exact composition of the formula, which is being licensed at the moment, is not disclosed. Feed "T", which has undergone biological analysis and is in accordance with organoleptic and physical standards was used for feeding tench female and male species during domestication period (60 days), along with food "Coppens" (Holland). Feed efficiency was determined according to survival and daily fish growth. Growth rate of females appeared more intensive than growth rate of males fed with experimental food "T". Daily growth changed depending on the types of food: from 0.3 ("Coppens") to 0.47 (experimental food) in females, from 0.25 ("Coppens") to 0.39 (experimental food) with males. Ability to survive among tench species fed with "Coppens" and experimental food made 60% and 100%, correspondingly. Nutricion of tench species with experimental food encouraged their domestication, which allowed using tench species in further fish breeding process in order to get offspring. The project was supported by the Innovation Promotion Fund in terms of the project "Development and implementation of the technique for the steady development of aquaculture: food "TechSA".

Reflections on the Meaning of Study Abroad

1995 ◽  
Vol 1 ◽  
pp. 96-103
Author(s):  
Elizabeth Shannon
Keyword(s):  
Study Abroad ◽  
Nursery School ◽  
Multiple Identities ◽  
Danger Zone ◽  
Host Family ◽  
The People ◽  
Life Itself ◽  
The Moment ◽  
First Time ◽  
The Stranger

Study abroad begins long before students leave their own shores. The moment that children enter daycare, nursery school, or kindergarten for the first time, they are in foreign territory, and all their antennae are out, testing, absorbing, learning. They begin to develop the first of their many multiple identities. They are no longer "Johnny" or "Sarah" whom everyone knows and loves at home, but Johnny or Sarah whom no one knows nor initially cares about, and they have to figure out what kind of a new identity they will develop so the danger zone becomes as safe as home.  Leaving familiar surroundings- the sounds, smells, safety, and food of home- and realizing, quite abruptly, that they must learn to adapt to the demands and needs of strangers, is the first and the most challenging "trip abroad" they will ever take. They will use the same set of skills, more mature, more polished (we hope) when they arrive on a foreign campus and move in with a host family or into an international dormitory.  Learning to make the journey with ease, whether it is on the first day of school or the day a plane drops one in a foreign field, is a necessary accomplishment. We have to make friends out of our peers; we have to gain the respect of our teachers; we have to develop curiosity and concern about the people around us. The stranger they seem, the more there is to learn. To fear diversity is to fear life itself. As the world becomes smaller and more integrated, the more crucial this accomplishment grows. 

scholarly journals Period-Life of a Branching Process with Migration and Continuous Time

Mathematics ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 868
Author(s):  
Khrystyna Prysyazhnyk ◽  
Iryna Bazylevych ◽  
Ludmila Mitkova ◽  
Iryna Ivanochko
Keyword(s):  
Random Process ◽  
Generating Function ◽  
Continuous Time ◽  
Branching Process ◽  
Probability Generating Function ◽  
Time Interval ◽  
The Moment ◽  
First Time ◽  
Critical Branching Process ◽  
Number Of Particles

The homogeneous branching process with migration and continuous time is considered. We investigated the distribution of the period-life τ, i.e., the length of the time interval between the moment when the process is initiated by a positive number of particles and the moment when there are no individuals in the population for the first time. The probability generating function of the random process, which describes the behavior of the process within the period-life, was obtained. The boundary theorem for the period-life of the subcritical or critical branching process with migration was found.

scholarly journals Wheat Bread with Grape Seeds Micropowder: Impact on Dough Rheology and Bread Properties

2020 ◽  
Vol 30 (1) ◽  
pp. 138-150
Author(s):  
Veronika Valková ◽  
Hana Ďúranová ◽  
Jana Štefániková ◽  
Michal Miškeje ◽  
Marián Tokár ◽  
...  
Keyword(s):  
Wheat Flour ◽  
Dough Rheology ◽  
Wheat Bread ◽  
Grape Seeds ◽  
Rheological Analysis ◽  
First Time ◽  
Positive Effect ◽  
Bread Properties ◽  
Electronic Eye ◽  
Different Levels

AbstractThe current study was designed to enhance the functionality of white bread by replacement of wheat flour with different levels (1%, 2%, 5%, and 8%) of grape seeds micropowder (GSMP) with nanosized particles (10 µm). Chemical composition of GSMP, volume and sensory attributes, evaluated with the panel of evaluators and an electronic nose (e-nose) and an electronic eye (e-eye) were investigated in the tested breads. It has been found out that GSMP contained appreciable amounts of flavonoids including catechin, epicatechin, gallic acid and minerals especially, Ca, K and Mg. The data from rheological analysis showed that the addition of GSMP (mainly at 5% and 8% levels) to the wheat flour had a positive effect on dough manifesting with rheology by increased dough stability. The volume of the experimental breads (above 1% concentration) was demonstrably declined (P < 0.0001) in comparison with the control bread. Sensory rating revealed that the bread fortified with 1% GSMP was judged by the consumer panelists as the most acceptable with the highest scores for all quality attributes which was also confirmed by the data of e-nose and e-eye. Our results suggest for the first time that 1% GSMP addition appears to be a promising functional ingredient to improve bread with required qualitative and sensory properties.

Urban cloverleaves: origin, aesthetics, and contradictions of the Slussen, Stockholm

2021 ◽  
pp. 1-14
Author(s):  
Álvaro Clua Uceda
Keyword(s):  
Traffic Engineering ◽  
City Centre ◽  
Compact City ◽  
The Baltic Sea ◽  
Southern District ◽  
Stockholm Archipelago ◽  
The Baltic ◽  
First Time ◽  
Historic City ◽  
Different Levels

On 11 October 1935, the inauguration of the Slussen urban cloverleaf took place in front of the excited citizens of Stockholm. It had the attributes of a pure traffic machine taken from the most advanced traffic engineering publications, and it expressed the optimistic cultural modernism that five years ago the Stockholm International Exhibition had promoted.1 This urban cloverleaf was made of translucent glass, reinforced concrete, metallic handrails, and reflective tiles and was meant to solve, in one single gesture, the complex urban link between the Lake Mälaren and the Baltic Sea, between Gamla Stan – the historic city centre – and Södermalm – the southern district built on top of the 35-metre-high plateau [1]. The solution made difficult urban compromises between the foothills of the Brunkeberg topography, the smooth water surfaces of the Stockholm archipelago, the architecture of the historic urban tissue, and the demands of a complex articulated mobility. Boats, goods, suburban trains, subways, trams – later buses – pedestrians, cyclists, and automobiles finally converged on this place at different levels, completing the intricacies of a threedimensional geometry which, for the first time in history, was inserted into a compact city.

The Situation of Catholic Instruction in Transylvania during the Communist Takeover

2020 ◽  
Vol 65 (2) ◽  
pp. 33-52
Author(s):  
László Holló
Keyword(s):  
Religious Education ◽  
Catholic Church ◽  
Virgin Mary ◽  
Educational Institutions ◽  
God's Will ◽  
School Network ◽  
One Year ◽  
The Moment ◽  
First Time ◽  
The Catholic Church

"In less than one year, the Catholic Church, just like the other denominations, lost its school network built along the centuries. This was the moment when the bishop wrote: “No one can resent if we shed tears over the loss of our schools and educational institutions”. Moreover, he stated that he would do everything to re-store the injustice since they could not resent if we used all the legal possibilities and instruments to retrieve our schools that we were illegally dispossessed of. Furthermore, he evaluated the situation realistically and warned the families to be more responsible. He emphasized the parents’ responsibility. First and foremost, the mother was the child’s first teacher of religion. She taught him the first prayers; he heard about God, Jesus, the Virgin Mary, and the angels from his mother for the first time. He asked for the mothers’ and the parents’ support also in mastering the teachings of the faith. Earlier, he already instructed the priests to organize extramu-ral biblical classes for the children and youth. At this point, he asked the families to cooperate effectively, especially to lead an ardent, exemplary religious life, so that the children would grow up in a religious and moral life according to God’s will, learn-ing from the parents’ examples. And just as on many other occasions throughout history, the Catholic Church started building again. It did not build spectacular-looking churches and schools but rather modest catechism halls to bring communities together. These were the places where the priests of the dioceses led by the bishop’s example and assuming all the persecutions, incessantly educated the school children to the love of God and of their brethren, and the children even more zealously attended the catechism classes, ignoring their teachers’ prohibitions. Keywords: Márton Áron, Diocese of Transylvania, confessional religious education, communism, nationalization of catholic schools, Catholic Church in Romania in 1948."

scholarly journals THE FORMATION OF THE FINANCIAL AND BUDGETARY SPHERE IN NORTH OSSETIA IN THE TRANSITION PERIOD (1917-1931)

2020 ◽  
Author(s):  
Е.И. КОБАХИДЗЕ
Keyword(s):  
Financial Management ◽  
Transition Period ◽  
Socialist Economy ◽  
New Economic Policy ◽  
Economic Space ◽  
Political Transformations ◽  
Economic Strategies ◽  
First Time ◽  
North Ossetia ◽  
Different Levels

В статье впервые анализируются раннесоветские практики формирования финансово-бюджетной сферы Северной Осетии в контексте государственной политики управления финансами. Их изучение представляется актуальным в связи с очевидным параллелизмом с процессами первого постсоветского десятилетия, когда в России формировалось новое политическое и экономическое пространство, в котором были активно задействованы восстановительные хозяйственно-экономические механизмы, применявшиеся в 20-х гг. XX в. Становление финансовой и бюджетной системы в Северной Осетии рассматривается в ее тесной связи с ходом государственного строительства; отдельное внимание уделено вопросам налогообложения, формирования бюджетов разных уровней, конкретным показателям хозяйственно-экономического развития Осетии на разных этапах переходного периода и в рамках политико-экономических стратегий «военного коммунизма» и «новой экономической политики». Общая специфика исследуемых процессов обусловлена значительными политическими трансформациями, переживаемыми страной в ходе построения советского государства и социалистической экономики. В то же время анализ документов и материалов, в том числе впервые вводимых в научный оборот, показывает, что Осетия, оказавшись в советской системе власти и управления, приобрела собственный опыт построения основ государственности и ее институтов, в том числе в финансовой сфере. For the first time, the article analyzes the early Soviet practices of the formation of the financial and budgetary sphere of North Ossetia in the context of the state policy of financial management. Their study is relevant in connection with the obvious parallelism with the processes of the first post-Soviet decade, when a new political and economic space was formed in Russia, in which the restorative economic mechanisms used in the 1920s were actively involved. The formation of the financial and budgetary system in North Ossetia is considered in its close connection with the progress of state building; special attention is paid to the issues of taxation, the formation of budgets of different levels, specific indicators of economic development of Ossetia at different stages of the transition period and within the framework of political and economic strategies of “war communism” and “new economic policy”. The general specificity of the processes under study is due to the significant political transformations experienced by the country in the course of building the Soviet state and socialist economy. At the same time, the analysis of documents and materials, including those introduced into scientific circulation for the first time, shows that Ossetia, having found itself in the Soviet system of power and administration, has acquired its own experience in building the foundations of statehood and its institutions, in the financial sphere as well.

scholarly journals Restoration of the military self-administration in the Terek cossak army in spring of 1917

Kavkaz-forum ◽  
2021 ◽  
pp. 90-100
Author(s):  
Ф.С. Киреев
Keyword(s):  
Historical Analysis ◽  
Historical Event ◽  
Practical Implementation ◽  
Self Administration ◽  
Political Situation ◽  
History Of ◽  
The Moment ◽  
Intellectual Potential ◽  
The Military ◽  
First Time

В статье анализируются причины возвращения войсковой системы самоуправления Терского казачества и показан сам процесс создания выборности войсковой власти. Актуальность исследования казачьего самоуправления обусловлена необходимостью теоретического обоснования и практического осуществления самоорганизации казачества России. Исторический анализ процесса организации самоуправления Терского казачества на войсковом уровне может послужить фундаментом для лучшего понимания и оценки современных процессов и явлений в казачьей среде и поможет выстраиванию государственной политики в отношении казачества в современной России. В отечественной историографии отсутствуют работы, посвященные конкретно восстановлению выборности власти в Терском казачьем войске. Поэтому научная новизна исследования определяется тем, что впервые предпринята попытка хронологической реконструкции истории создания войсковой системы самоуправления Терского казачества. Методологической основой исследования является принцип историзма, что предусматривает изучение момента возникновения исторического события и этапы его развития. Анализ событий на Тереке в 1917 г. показывает, что терские казаки смогли самоорганизоваться, создать полноценное административно-территориальное образование, и лишь изменение социально-политической ситуации в России в целомпомешало укрепить и продолжить это начинание. Еще необходимо отметить, что терские казаки к моменту восстановления войскового самоуправления подошли уже с готовыми проектами соответствующих документов, что позволило Терскому войску первым среди других войск создать свою выборную власть. Это говорит о высоком интеллектуальном потенциале в среде терских казаков. The article analyzes the reasons for the restoration of the military system of self-government of the Terek Cossacks and shows the very process of creating the elective military power. The relevance of the study of Cossack self-government is due to the need for theoretical justification and practical implementation of the self-organization of the Cossacks of Russia. Historical analysis of the process of organizing self-government of the Terek Cossacks at the military level can serve as a foundation for better understanding and assessment of modern processes and phenomena in the Cossack environment and will help to build state policy towards the Cossacks in modern Russia. In the Russian historiography, there are no works devoted specifically to the restoration of the election of power in the Terek Cossack army. Therefore, the scientific novelty of the research is determined by the fact that for the first time an attempt was made to chronologically reconstruct the history of the creation of the military system of self-government of the Terek Cossacks. The methodological basis of the research is the principle of historicism, with its focus on the study of the moment of occurrence of a historical event and the stages of its development. An analysis of the events on the Terek in 1917 shows that the Terek Cossacks were able to organize themselves and create a full-fledged administrative-territorial entity and only a change in the socio-political situation in Russia as a whole was placed, strengthened and continued this initiative. It should also be noted that the Terek Cossacks, by the time of the restoration of military self-government, came up with ready-made drafts of relevant documents, which allowed the Terek army to be the first among other troops to create their own elected power. This indicates a high intellectual potential among the Terek cossacks.

scholarly journals The ruin problem for a Wiener process with state-dependent jumps

2020 ◽  
Vol 16 (1) ◽  
pp. 13-23
Author(s):  
M. Lefebvre
Keyword(s):  
Differential Equation ◽  
Ordinary Differential Equation ◽  
Diffusion Process ◽  
Wiener Process ◽  
Jump Diffusion ◽  
Moment Generating Function ◽  
Continuous Part ◽  
State Dependent ◽  
The Moment ◽  
First Time

AbstractLet X(t) be a jump-diffusion process whose continuous part is a Wiener process, and let T (x) be the first time it leaves the interval (0,b), where x = X(0). The jumps are negative and their sizes depend on the value of X(t). Moreover there can be a jump from X(t) to 0. We transform the integro-differential equation satisfied by the probability p(x) := P[X(T (x)) = 0] into an ordinary differential equation and we solve this equation explicitly in particular cases. We are also interested in the moment-generating function of T (x).

Temperature and Time of Development of the Two Sexes in Drosophila

1926 ◽  
Vol 4 (2) ◽  
pp. 186-195 ◽  
Author(s):  
GERT BONNIER
Keyword(s):  
Statistical Significance ◽  
Pupal Stage ◽  
The Other ◽  
Female Development ◽  
Short Intervals ◽  
Influence Of Temperature On ◽  
The Times ◽  
The Moment ◽  
First Time ◽  
Insight Into

1. The time of development at 25°C. up to the moment of pupation is found to be for females and males respectively 116.62 ± 0.19 and 116.78 ± 0.20 hours. During the pupal stage the two times are 111.36 ± 0.15 and 115.46 ± 0.13 hours. 2. At 30° C. the corresponding figures are (in the same order): 99.95 ± 0.49, 103.37 ± 0.43, 78±15 ± 0.50 and 84.26 ± 0.34 hours. 3. These figures show that there is a statistical significance in the differences of the times of development of the two sexes for both the periods at 30°C. but only for the pupal stage at 25° C. It is pointed out that the fact that the longer time of male development as compared with female development at 25° C. is confined to the pupal stage, may be correlated with the other fact that the essential parts of the secondary sexual characters are developed during this stage. 4. It is shown that there is a negative correlation between the pre-pupal and pupal times of development, indicating that the longer the first time is, the shorter is, as a rule, the other time and vice versa. 5. With the aid of statistical methods it is shown that the shortening of the time of development at 30°C. as compared with the time at 25° C. is much more pronounced for the pupal than for the pre-pupal stage. 6. This last fact is discussed and it is emphasised that the ordinary methods of studying the influence of temperature on development are too rough to be of more than of a descriptive value, the only way of getting a deeper insight into the processes of development by temperature studies being the separate studies of a number of short intervals.

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